Nifi record path guide, Oct 21, 2024 · Administration Guide - A guide for setting up and administering Apache NiFi for production environments. This is a short reference to find useful functions and examples. There may be differences in the content compared to the version of NiFi you are using. Jul 2, 2018 · The Apache NiFi documentation is available both online and within the NiFi User Interface (UI). NiFi has a web-based user interface for design, control, feedback, and monitoring of dataflows. Sep 19, 2019 · Apache Nifi Record path allows dynmic values in record based processors. See the Apache NiFi documentation to access the Apache NiFi RecordPath Guide. Apache NiFi RecordPath Guide For more information, see the Apache NiFi RecordPath Guide. It supports powerful and scalable directed graphs of data routing, transformation, and system mediation logic. Oct 21, 2024 · Apache NiFi is a dataflow system based on the concepts of flow-based programming. Often times, in order to perform the desired function, a processor will need input from the user in order to determine which fields in a Record or which values in a Record should be operated on. The online documentation consistently reflects the latest NiFi version. There are several processors that have already been developed for NiFi that provide some very powerful capabilities for routing, querying, and transforming Record-oriented data. A Record in NiFi is made up of (potentially) many fields, and each of these fields could actually be itself a Record. Enter the NiFi RecordPath language. The online documentation always shows the latest version of the NiFi documentation. Oct 21, 2024 · Structure of a NiFi Expression The NiFi Expression Language always begins with the start delimiter $ { and ends with the end delimiter }. Jan 13, 2026 · It provides a concise syntax similar to XPath/JSONPath for selecting fields from records, applying predicates to filter results, and transforming field values through built-in functions. It can sometimes be useful, however, to obtain the name of the field instead of the value. Between the start and end delimiters is the text of the Expression itself. For example, you can use a path such as [ substringAfter(/name, ' ') = 'Doe'] but you cannot use [ substringAfter(/name, ' ') ] because doing so doesn’t really make sense, as filters must be boolean values. Normally, when a path is given to a particular field in a Record, what is returned is the value of that field. In its most basic form, the Expression can consist of just an attribute name. This guide provides information about the different system-level settings, such as setting up clusters of NiFi and securing access to the web UI and data. Important: The Apache NiFi documentation is available both online and within the NiFi User Interface (UI). Oct 21, 2024 · RecordPath is intended to be a simple, easy-to-use Domain-Specific Language (DSL) to specify which fields in a Record we care about or want to access when configuring a processor. . This page covers the RecordPath syntax, compilation process, evaluation model, and field manipulation operations. Important: The Apache NiFi documentation is available both online and in the NiFi UI.


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